Background: API has two standards for fixed offshore platforms: API. 2A-LRFD and API 2A WSD and we are not sure which standard use. RP. 2A WSD states in . Documents Similar To API RP 2A-LRFD – Offshore Platform Loading serleb API RP2A Foundation design chapter. Uploaded by. Lea Marsela. lrfd. ABSTRACT This paper assesses the benefits offered by API RP2ALRFD. It demonstrates that improvements in reliability offered by API RP2A-LRFD can be .

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Sheriff’s Encyclopedic Dictionary of Applied Geophysics, fourth edition. The reliability lrtd the Goodwyn ‘A’ substructure has been a major focus of the design and results are presented showing the platform reserve capacity, computed using non-linear inelastic ductility analyses.

The work is confined to the in-place strength of the jacket and module support frame MSF. Proceedings of an international conference Diverless and Deepwater Techology: Proceedings of an International Conference Submersible Technology: The designation ‘load resistance factor design’ derives from the concept of factoring both loads and resistances as opposed to the lrfx stress design approach where only the resistance is divided by a factor of safety. This is achieved by providing a basic framework for design, accompanied by guidance on problem areas lying outside this framework.


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Proceedings of an international conference Subsea Controls and Data Acquisition ‘ The study is based on work performed for Woodside as part of the substructure design for the Goodwyn ‘A’ Platform.

LRFD however, is an improved approach to structural design which takes into apii the possible uncertainties in the applied loads and component resistances.

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A Comparative Study Using API RP2A-LRFD – OnePetro

Although fundamental differences exist between the WSD and LRFD versions, the two documents remain remarkably similar with the LRFD draft containing most of the carefully phrased clauses which are familiar to many practicing engineers.

As a reliability based alternative, the load resistance factor design LRFD method offers a more consistent approach to platform safety than does the existing RP2A working stress design WSD method.

Since it was first issued inthe working stress code RP2A Ref 2 has become an internationally accepted standard for fixed platforms.


The issue of a load resistance factor design version reflects the worldwide trend away from working stress design to reliability based methods.

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